Punching-machine.



No. 771,391. PATENTED OCT. 4, 1904.

H. RYAINES.

- PUNGHING MACHINE.

APPLIOATION IILED 1111.4, 1904.

N0 MODEL.

2 SHEETS-*BHEET 1.

no MODEL.

H. R A INES.

. PUNGHING MACHINE.

APPLICATION-FILED JAN. 4, 19 04.

2 SHEETS-SHEET 2.

PATENTED 0012.4, 1904.

UNITED STATES Patented October 4, 1904.

PATENT OEEIcE.

ONE-HALF TO HENRY J. LOWREY, OF MASON, TEXAS.

PUNCHING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 771,391, dated October4, 1904..

Application filed January 4:, 1904. Serial No. 187,647. (No model.)

1'0 all whom, it nanny concern.-

Be it known that I, HENRY RAINES, a citizen of the United States,residing at Mason, in the county of Mason and State of Texas, haveinvented certain new and useful Improvements in Punching-lVIaehines; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to punches, and has particular reference to theclass of punching-machines adapted for sheet-metal-ware work.

The object resides in the provision of a simple, efficient, durable, andcompact structure capable of adjustment for the accommodation of work ofvarious dimensions.

With these and other objects in view the present invention consists inthe combination and arrangement of parts hereinafter more fullydescribed, illustrated in the accompanying drawings, and pointed out inthe appended claims.

In the drawings, Figure 1 is a perspective view of the punch. Fig.2 is avertical section showing the manner of securing the horizontal beams.Fig. 3 is a vertical section through a portion of the'maehine with thepunch lowered. Fig. 4 is a section similar to Fig. 3 with the punchraised. Fig. 5 is a perspective view of the shifting lever.

eferring now to the drawings, the reference character 1 designates aframe, of wood or other suitable material, having sets of aliningperforations 2 for the reception of the respective screw-threaded endsof the clamps or staples 3 and 4, respectively. These perforations 2 arenot screw-threaded, but are of sufficient diameter to loosely receivethe screw-threaded ends of the said clamps, the free ends of the latterreceiving nuts 5, whereby the body portions of the clamps may beadjusted toward and away from the frame, as well understood.

Mounted transverse of the frame 1 and secured within the clamps 3 and 4are disposed alining upper and lower arms or supports 6 and 7,respectively, one end of the lower support having a recess 8 in itsupper face communicating with the perforation 9 of a di ameterpreferably the same as the central perforation 10 of the die 11, whichlatter is seated within the recess 8 and capable of adjustment by meansof the thumb-screw 12, piercing the end of said support, as clearlyshown in the drawings.

The upper arm or support 6 is provided in its end corresponding to thedie part of the support 7 with the perforation or opening 13 for thefree reception of the plunger 14, which is loosely and detachablysupported within the follower 15, with its extreme free end or needleportion 16 piercing the lower end thereof, the follower in its turnbeing suspended from the lower portion of the upper arm 6 by means ofthe springs 17, as shown. While it is obvious that the plunger 14 andthe perforation 13, in which the former hasa working fit, may be of anyform in cross-section, it is preferred in the present instance that bothof these elements be circular in cross-section. The upper arm or support6 is provided also with ahorizontal perforation 18, preferably circularin cross-section, intersecting the vertical perforation 13, and hasaxially mounted therein a hand or other lever 19. The axial or pivotalpart 20 of this lever is directed at a right angle to the body portion19 thereof and has a mutilated portion forming a shoulder 21, which isadapted to engage the shoulder 22 of the plunger 1 1 and lift the latterout of contact with the punched material, as will be hereinafter moreclearly explained.

It will now be understood that the upper and lower arms or supports 6and 7 are detachably secured to and arranged for longitudinal adjustmentwith relation to the frame 1 by means of the alining staples or clamps 3and 4, respectively. By this arrangement either or both arms may beadjusted according to the character of work involved.

After the frame 1 has been secured to any suitable support in anymanneras, for instance, by means of screws, bolts, or other elementstherein-and the different parts of the machine have been assembled inaccordance with the foregoing description the material to be punched isplaced upon the die 11, when a hammer or other power (not shown) isbrought into contact with the upper end of the plunger 14:, causing theend 16 to pierce the material. Usually when the needle 16 enters thematerial there is suiiicient friction therebetween to hold the needle inengagement therewith, and as the follower follows the plunger and havinga broad flat bearing-surface prevents the material being marred orotherwise distorted by the punching operation. The follower remains incontact with the material until the lever 19 is turned for theengagement of the shoulder 21 thereof with the shoulder 22 of theplunger, as shown in Fig; 1, when by a further turn of the lever theplunger and follower are lifted to their normal position, the springs 17having a cushioning effect between the arms or supports, the plunger andthe follower acting also to aid the lever in the lifting of the plungerto resist the stroke of the latter, and, finally, to support the plungerin its normal position above the die, as well understood.

By reason of the mutilated portion of the lever it is obvious that thesame will not interfere with the downward stroke of the plunger if saidmutilated portion be thrown into alinement with the vertical perforation13 before power is brought into contact with the plunger.

It is to be understood that while I have described my invention indetail 1 do not limit myself to the precise construction shown, but

that I consider myself entitled to changes in form, proportion,material, and minor details which may be resorted to without de 'Jartingfrom the spirit of the invention.

I claim 1. A punching machine, comprising a frame, upper and lowersupports mounted for independent longitudinal adjustment upon the frame,a die adjustably carried by the lower support, a plunger slidablymounted Within the upper support, said plunger having a notch therein,means disposed between the supports and pierced by the plunger forresisting the downward movement of the latter, and a lever axiallymounted within the upper support for engagement with the plunger toreturn the latter to its normal position.

2. A punching-machine comprising upper and lower supports, a die carriedby the lower support, a plunger mounted in the upper support andprovided with a die disposed for cooperation with the iirst-named die,said plunger having a recess in the side thereof, a lever having a cammovable into and out of engagement with the upper wall of the recess toraise the plunger, supplemental means connected with the plunger forraising the latter automatically when pressure thereon is removed.

In testimony whereof Iaffix my signature in presence of two witnesses.

HENRY RAINES.

\Vitnesses:

RUDOLPH RUNGE, H. J. LOWREY.

